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Osa Weather (Next 3 days): The snow forecast for Osa is: Mostly dry. Freeze-thaw conditions (max 9°C on Thu morning, min 0°C on Mon night). Wind will be generally light.
Osa Weather (Days 4-6): A dusting of snow. Milder later with heavy rain (total 26.0mm) on Sun morning. Freeze-thaw conditions (max 9°C on Thu afternoon, min -4°C on Fri night). Winds decreasing (fresh winds from the NW on Thu night, light winds from the SSW by Sat afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 3 |  | ||||
| Bottom Lift: | 6 | |
Latest snow reports near Osa:
Mon 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  | | | | |  |  |  |  |  | |  | | |  | |
cloudy | some clouds | clear | clear | some clouds | cloudy | cloudy | cloudy | some clouds | rain shwrs | snow shwrs | light snow | light snow | clear | clear | cloudy | light snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | |
— | — | — | — | — | — | — | — | — | 1 | 3 | — | — | — | — | — | 11 | |
max °C | 6 | 2 | 5 | 4 | 1 | 7 | 7 | 4 | 9 | 9 | 6 | 0 | -1 | -3 | 3 | 4 | 3 |
min °C | 4 | 0 | 3 | 1 | 0 | 4 | 3 | 3 | 6 | 7 | 1 | 0 | -3 | -4 | 0 | 1 | 0 |
0 | -3 | 0 | -3 | -4 | 2 | 2 | 1 | 3 | 3 | -4 | -5 | -9 | -9 | -3 | -1 | -3 | |
75 | 81 | 74 | 63 | 65 | 51 | 38 | 41 | 41 | 71 | 82 | 97 | 90 | 81 | 57 | 52 | 97 | |
1350 | 900 | 1000 | 1100 | 1050 | 1550 | 1750 | 2100 | 1700 | 1750 | 1300 | 650 | 550 | 0 | 850 | 1150 | 1450 | |
 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — |
 | 4:59 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — |
Mostly dry. Freeze-thaw conditions (max 9°C on Thu morning, min 0°C on Mon night). Wind will be generally light.
A dusting of snow. Milder later with heavy rain (total 26.0mm) on Sun morning. Freeze-thaw conditions (max 9°C on Thu afternoon, min -4°C on Fri night). Winds decreasing (fresh winds from the NW on Thu night, light winds from the SSW by Sat afternoon).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 4 Dec 2025 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.3 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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